Image above
shows EF5 El Reno Tornado at maximum width of 2.6 miles south of city

Juston Drake and Simon Brewer,
and nearby Jim Bishop and Jesse Duncan in another vehicle, documented the
new record measured widest tornado in history near El Reno, OK on May 31,
2013 breaking the old record of 2.5 miles in diameter measured with the
Hallam, NE tornado on May 22, 2004.
The torando was rated an EF5 based on mobile radar measurements, which might
yield the highest wind measurements ever recorded near the surface with
a tornado possibly breaking the previous high wind measurement recorded
with the infamous May 3, 1999 Bridgecreek/Moore OK F5 tornado. Unfortunately,
this tornado also cost the lives of many people including several storm
chasers.

Below
are a few photos from the deadly El Reno EF5 tornado:

Supercell
& large bowl-shaped multivortex tornado about 4 miles to our South (insane
vault structure)